East Vermillion Lake Weather Forecast

    • 52
    • 79

    Mostly Sunny

    • 63
    • 82

    Sunny

    • 56
    • 87

    Breezy

    • 53
    • 75

    Mostly Cloudy

    • 58
    • 71

    Rain Showers

    • 50
    • 75

    Partly Sunny

    • 53
    • 71

    Mostly Sunny

Today 9 Sep McCook

Sunny. Near steady temperature in the upper 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Sep McCook

Partly cloudy this Evening, then clearing. Lows in the lower 50s. West Winds 10 to 15 Mph, becoming southwest around 5 Mph after midnight.

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East Vermillion Lake Temperature Statistics

September Temperature

Sioux Falls, Foss Field (20.5 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    79.3 °F

  • Highest 4 September, 2026

    99.6 °F

Climate (2021–2026)

Sioux Falls, Foss Field (20.5 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    61.1 °F
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